Seduce them slowly: If you are the one who tends to be dressed for success and they live in their jeans, don’t expect a change overnight. Take it slow, offering helpful suggestions one piece at a time to ease them into a more polished look. Don’t be too pushy about your partner’s fashion upgrade and try to make it fun for both of you. 

Take it to the next level: Coax your partner into upgrades that are easy to incorporate into their wardrobe. For example, if they love denim, head them towards tailored and modern jean fits in clean washes and eventually into flat-front dress pants. Or, if they love their cotton T-shirts and sweaters, upgrade them to the same styles in luxurious fabrics like pima cotton and cashmere. Make the transition easy and painless. 

Colour each other’s world: Couples can always appear “pulled together” by simply following some simple colour rules. Think of classic colour combinations (i.e. black and camel, red and navy) and work within those parameters. If you are in a camel outfit, your partner will look sharp and sophisticated in a crisp black ensemble. Or, go for a pairing that involves the overall colour “mood”. Like a great advertising spread in a magazine, dress in the same general colours (i.e. blues) and fabrics (i.e. tweeds) and you’ll complement each other without matching exactly. It will look harmonious yet not forced.